Last updated: June 24, 2025
In September, the average temperature in Henderson, United States reaches a warm 30°C (85°F), with the mercury occasionally dipping to a cool 12°C (54°F) and soaring up to a sizzling 45°C (114°F). Visitors can expect 4 mm (0.2 in) of rain over the course of 1 day, accompanied by an average humidity of 41%, creating a comfortable atmosphere for outdoor adventures.
In September in Henderson, the average temperature is 30°C (85°F). The maximum can reach 45°C (114°F), and the minimum can be as low as 12°C (54°F). Be prepared for a warm climate and consider bringing lightweight clothing, along with layers for cooler evenings.
In Henderson in September, the precipitation amount is 4 mm (0.2 in) during 1 day.
In Henderson in September humidity is 41%. With an average temperature of 30°C (85°F), this humidity feels like a warm embrace, making outdoor adventures comfortable yet slightly sticky, perfect for leisurely strolls or exploring the sights, but travelers should stay hydrated to enjoy the experience fully.
In Henderson in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Henderson.
UV Risk Categories
Weather in Henderson varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Henderson, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | 10°C (50°F) | 18 mm (0.7 inches) | 76% | moderate |
February Weather | 12°C (53°F) | 18 mm (0.7 inches) | 80% | high |
March Weather | 16°C (61°F) | 18 mm (0.7 inches) | 69% | very high |
April Weather | 21°C (71°F) | 3 mm (0.1 inches) | 57% | very high |
May Weather | 25°C (78°F) | 5 mm (0.2 inches) | 45% | extreme |
June Weather | 32°C (90°F) | 1 mm (0.1 inches) | 34% | extreme |
July Weather | 35°C (95°F) | 15 mm (0.6 inches) | 29% | extreme |
August Weather | 34°C (94°F) | 9 mm (0.4 inches) | 28% | extreme |
September Weather | 30°C (85°F) | 4 mm (0.2 inches) | 41% | very high |
October Weather | 21°C (70°F) | 5 mm (0.2 inches) | 54% | high |
November Weather | 15°C (59°F) | 13 mm (0.5 inches) | 68% | moderate |
December Weather | 9°C (49°F) | 13 mm (0.5 inches) | 75% | moderate |